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Arthropods!

Arthropods!. Do Now : Turn in Earthworm dissection. Phylum Arthropoda. Biggest phylum of animals currently alive and extinct. Several _________ different species Exist in every environment, in almost every ecosystem on Earth.

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Arthropods!

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  1. Arthropods! Do Now: Turn in Earthworm dissection

  2. Phylum Arthropoda • Biggest phylum of animals currently alive and extinct. • Several _________ different species • Exist in every environment, in almost every ecosystem on Earth. • By any measure, the most “successful” animal phylum. ______ of all known species of animal are arthropods.

  3. What Makes an Arthropod? • _______________: • Hard, protective outer “shell.” • Used for movement • contains_________, a ________________.

  4. Exoskeleton for ___________________ • Your muscles are attached to an _______________. • An exoskeleton serves the same purpose

  5. What Else Makes an Arthropod? • ____________________ symmetry

  6. _______________________ body plan • Each segment has at least 1 pair of _____________. • Legs, antenae, flipers, claws, etc. are all appendages. • Some segments may be fused together.

  7. 3 Main Body Sections • Called _____________: Some may be fused

  8. ___________ Appendages (and lots of ‘em)

  9. Recap: Arthropod Characteristics • ____________________________ • ___________________________ symmetry • Segmented body plan (3 ___________: head, thorax, abdomen) • Jointed appendages (many pairs). Note: arthropod means “________________________.”

  10. Arthropod Circulatory System • ________________ circulatory system with heart.

  11. Arthropod Respiration • Gills/__________________: oxygen diffuses into blood • ________________: air moves into insect directly

  12. Types of Arthropods • Domain: ____________ • Kingdom: ___________ • Phylum: Arthropoda • Classes: ________________________________________________________________________________

  13. The Family Tree

  14. Class Crustacea: The Crustaceans • Only arthropod class with ________________ _____________________________________ .

  15. Class Crustacea: The Crustaceans • Includes crabs, lobsters, shrimp, as well as ___________.

  16. Crustacean Orders • “True” Crustaceans = Order ________________ • 5 pairs of legs • 2 tagmata • Cephalothorax • Abdomen • “Pillbugs” = Order _________ • 7 pairs of legs • 3 tagmata

  17. Class Insecta • _____________of antennae • ____________ of legs • ______ tagmata • Wings or wingless

  18. Insect Diversity • Biggest order of animal on Earth • Over ______________documented species. • Highest estimates suggest up to 30,000,000 species may exist.

  19. Class ____________________: Spiders, Ticks, Scorpions, Mites, etc. • _______ antennae • __________ pairs of legs

  20. Arachnids Trilobites = Extinct Arachnids

  21. Centipedes And Millipedes: Class Myriapoda • _____________of antennae. • Two tagmata: _____________ and _________ 1 pair of legs per segment centipede subclass chilopoda 2 pairs of legs per segment Millipede subclass diplopoda

  22. Recap: Arthropod Family Tree Phylum Arthropoda many orders many orders, including extinct trilobites Chilopoda Deca-poda diplopoda Iso-poda

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